Only Administrators can view threat details?

I just installed norton (build 17.0.0.136), and it found a threat -- Infostealer.Banker.C.  I have an old hard drive from a previous computer installed, and I would like to see whether the virus actually infected my current computer, or was just on the old drive.  

 

Unfortunately, when I go to "Activity", it shows the following peculiar message:  "You must be an Administrator to view all threat details."  I am an Administrator.  What gives?  How do I find out what was infected, and what was fixed?

 

Thanks,

 

  DeLesley